I have an older computer with a SATA-I connection. My hard drive crashed and I need to buy a new hard drive. Will I run into problems if I connect a SATA-II drive to my computer?
Yes, SATA-II is backwards-compatible. You'll only be able to use SATA-I bandwidth (150 MB/s), but since that is well above what normal hard drives deliver, that shouldn't be a problem.